Partial-Embed Metal Struts in Insulating Foam Panels
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Solution Overview
Problem
Existing building panels with metal struts that extend through insulating foam blocks are thermally conductive, reducing the thermal insulation properties of the panels, and are susceptible to damage from environmental factors.
Innovation Solution
The use of pre-fabricated building panels with T-shaped or L-shaped metal support members that extend only partially into insulating blocks, such as EPS foam, to provide structural strength while minimizing thermal conductivity by breaking the continuous thermal conduction path through the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal struts extend completely through insulating foam blocks, then structural strength is improved, but thermal insulation property deteriorates due to continuous thermal conduction path
Solution Approach 1:
The metal strut is segmented into multiple discrete sections rather than forming a continuous element through the foam block. Each section is embedded in insulating material, creating thermal breaks between metal segments. This segmentation maintains structural load-bearing capability while interrupting the continuous thermal conduction path, thereby improving thermal insulation performance.
Solution Approach 2:
Insulating material is introduced as an intermediary substance between metal strut sections. This intermediary material thermally isolates the metal segments from each other, preventing direct thermal conduction through the strut while allowing the strut to maintain its structural function. The insulating intermediary effectively decouples the structural and thermal conduction functions.
2Productivity
If pre-fabricated panels are manufactured off-site, then construction time and labor cost are reduced, but manufacturing complexity increases
Solution Approach 1:
The metal struts are pre-assembled into predetermined configurations and pre-embedded in insulating foam blocks during off-site manufacturing, before transport to the construction site. This preliminary assembly of structural and insulating components simplifies on-site installation, as panels require only positioning and connection rather than complex assembly operations.
Solution Approach 2:
The structural metal strut and insulating foam block are merged into a single integrated panel assembly during manufacturing. This merging of structural and thermal insulation functions into one composite component reduces the number of separate installation steps required on-site, thereby improving construction productivity despite increased manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the thermal insulation properties and structural strength of building panels, reducing heat transfer and improving resistance to environmental elements like wind, rain, and earthquakes, while allowing for efficient off-site manufacturing and assembly.
Implementation Method 1
metal struts that extend through insulating foam blocks are thermally conductive, reducing the thermal insulation properties of the panels
Data Source
AI summary
A building panel for residential and commercial construction uses a plurality of insulating blocks connected together by adhesive. The insulation blocks are typically made of foam. A plurality of support members are disposed on opposite sides of the insulating blocks and offset with respect to the adjacent support member. The support member are typically made of metal and can have different shapes including “T” shape, “U” shape, and “L” shape. Each support member has a head portion in contact with a surface of the insulating block and a stem portion extending into the insulating block and having a length less than a width of the insulating block so that a thermal conduction path of the support member is discontinuous across the insulating block. The panel can be used as a curtain wall panel in high-rise construction, as well as bodies for aircraft, automotive, and marine applications.